NED Abstract

Copyright by American Astronomical Society.
Reproduced by permission
2013ApJ...768...76S
The Supermassive Black Hole Mass-Spheroid Stellar Mass Relation for Sersic
and Core-Sersic Galaxies
Scott, Nicholas; Graham, Alister W.; Schombert, James
Abstract. We have examined the relationship between supermassive black
hole mass (M_BH_) and the stellar mass of the host spheroid (M_sph, *_)
for a sample of 75 nearby galaxies. To derive the spheroid stellar masses
we used improved Two Micron All Sky Survey K_ s_-band photometry from the
ARCHANGEL photometry pipeline. Dividing our sample into core-Sersic and
Sersic galaxies, we find that they are described by very different
M_BH_-M_sph, *_ relations. For core-Sersic galaxies---which are typically
massive and luminous, with M_BH_ >~ 2 x 10^8^ M_sun_---we find
M_BH_vprop M_{sph,*}_^{0.97 +/- 0.14}, consistent with other literature
relations. However, for the Sersic galaxies---with typically lower masses,
M_sph, *_ <~ 3 x 10^10^ M_sun_---we find M_{BH}_ is proportional to
{M}_{sph,*}_^{2.22 +/- 0.58}, a dramatically steeper slope that differs by
more than 2 standard deviations. This relation confirms that, for Sersic
galaxies, M_BH_ is not a constant fraction of M_sph, *_. Sersic galaxies
can grow via the accretion of gas which fuels both star formation and the
central black hole, as well as through merging. Their black hole grows
significantly more rapidly than their host spheroid, prior to growth by
dry merging events that produce core-Sersic galaxies, where the black hole
and spheroid grow in lockstep. We have additionally compared our Sersic
M_BH_-M_sph, *_ relation with the corresponding relation for nuclear star
clusters, confirming that the two classes of central massive object follow
significantly different scaling relations.
Key words: black hole physics, galaxies: bulges, galaxies: fundamental
parameters, galaxies: nuclei
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2014ApJ...792..143S
Abstract. Erratum: "The Supermassive Black Hole Mass-Spheroid Stellar Mass
Relation for Sersic and Core-Sersic Galaxies" (2013, ApJ, 768, 76)
Scott, Nicholas; Graham, Alister W.; Schombert, James
The normalization of the spheroid stellar mass, Msph, * for Sersic galaxies
in Equation (4) is incorrectly given as 3.0 × 10^10^M_sun_. The correct
value is 2.0 × 10^10^M_sun_. Equation (4) should therefore read
{see text}
This correction does not affect the results or conclusions of this paper
in any respect.
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